CVE-2025-71344
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedpicklescan before 0.0.30 (affected versions 0.0.26 and earlier) fails to detect the ensurepip._run_pip built-in function when scanning pickle files, allowing attackers to execute arbitrary code. Malicious pickle files embedding ensurepip._run_pip calls in __reduce__ methods bypass picklescan detection and achieve remote code execution upon pickle.load() invocation.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidencepicklescan before 0.0.30 fails to detect the ensurepip._run_pip built-in function embedded in pickle files via __reduce__ methods, allowing malicious pickle files to bypass detection and achieve remote code execution when loaded via pickle.load().
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Identify picklescan installationRun 'pip show picklescan' or 'pip list | grep picklescan' to determine if picklescan is installed in your Python environmentAffected if picklescan is not installed or not found in the environment
-
Determine installed versionCheck the Version field from the pip command output and compare it numerically to version 0.0.30Affected if The installed version is less than 0.0.30 (e.g., 0.0.29, 0.0.28, etc.)
-
Identify pickle scanning usageReview your codebase or automation to see if picklescan is being used to scan pickle files from external or untrusted sourcesAffected if picklescan is used to validate pickle files that originate from untrusted input or external users
-
Verify scan coverageConfirm that your picklescan invocation processes all pickle files in your workflow, including those passed to pickle.load() in your applicationsAffected if picklescan scanning is bypassed or not integrated into the pickle file loading process
You are affected if picklescan version is below 0.0.30 AND you rely on it to detect malicious pickle files from untrusted sources that may contain the ensurepip._run_pip payload.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpgrade picklescan to version 0.0.30 or later to include detection for ensurepip._run_pip; alternatively, avoid using pickle.load() on untrusted files and consider safer serialization formats like JSON.
0.0.30
- Upgrade picklescan to version 0.0.30 or later using pip: pip install picklescan>=0.0.30
- Verify the installation: pip show picklescan
- Ensure your application uses the updated version of picklescan for scanning pickle files
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-71344 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-71344 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data